reference to nonexistent field

Hi there I am trying to link two guis together , I have successfully transfered data between them using setappdata and getappdata But I've got error when trying set data into table (Reference to nonexistent field)

if true
  function results_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to results (see VARARGIN)
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
a= getappdata(0,'a');
b=getappdata(0,'b');
d=zeros(size(a,1),size(b,2));
set(handles.uitable1,'Data',d)
choice=getappdata(0,'choice');
switch choice
  case 1
      if size(a)==size(b)
          r=a+b;
          set(handles.uitable1,'Data',r)
      else
         set(handles.text1,'string','lenghts must agree')
      end
  case 2
      if size(a)==size(b)
          r=a-b;
          set(handles.uitable1,'Data',r)
      else
         set(handles.text1,'string','lenghts must agree')
      end
  case 3
      if size(a,2)==size(b,1)
          r=a*b;
          set(handles.uitable1,'Data',r)
      else
         set(handles.text1,'string','inner dimensions must agree')
      end
  case 4
      set(handles.uitable1,'Data',inv(a))
  case 5
end
end

[Image Analyst]

Impossible to say what's wrong until you show us the relevant lines of code where you call those two functions. For example, how do we know that you passed in the correct handles?

[Hamza]

if true
 function results_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to results (see VARARGIN)
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
a= getappdata(0,'a');
b=getappdata(0,'b');
d=zeros(size(a,1),size(b,2));
set(handles.uitable1,'Data',d)
choice=getappdata(0,'choice');
switch choice
  case 1
      if size(a)==size(b)
          r=a+b;
          set(handles.uitable1,'Data',r)
      else
         set(handles.text1,'string','lenghts must agree')
      end
  case 2
      if size(a)==size(b)
          r=a-b;
          set(handles.uitable1,'Data',r)
      else
         set(handles.text1,'string','lenghts must agree')
      end
  case 3
      if size(a,2)==size(b,1)
          r=a*b;
          set(handles.uitable1,'Data',r)
      else
         set(handles.text1,'string','inner dimensions must agree')
      end
  case 4
      set(handles.uitable1,'Data',inv(a))
  case 5
end
end

[Hamza]

where are you?

[Geoff Hayes]

Hamza - as Image Analyst commented, it isn't clear from within your code where or how the two GUIs are tied together. Which line of code is generating the error? Is the uitable1 part of your results GUI? Please don't copy and paste the same body of code (again). Just include the relevant lines of code that generate the error and/or link the two GUIs.

[Hamza]

This code taken from second GUI Yes the error is in uitable part

[Geoff Hayes]

Hamza - which line of code is generating the error? Are you sure that uitable1 exists in the second GUI? Put a breakpoint at

 choice=getappdata(0,'choice');

and run your code. When the debugger pauses at this line, look at the handles structure. Is there a field called uitable1?

Also, what is your work flow. Do you launch the first GUI and do some work, and then manually launch the second GUI? Please describe the steps.

[Hamza]

The error when I set data to table Yes I am sure uitable is exist My workflow is I push button in gui 1 then gui2 pop up and store data taken from gui1 in gui2

[Geoff Hayes]

And what happens when you put a breakpoint at the line I mentioned? Please try that and verify uitable1 exists. Else post the m and fig files for your GUI so that we can verify that it is correct.

[Hamza]

the error begins from here set(handles.uitable1,'Data',d)

[Geoff Hayes]

So given the error message, handles does not have a field named uitable1. Can you post your m and fig files so that we can verify whether or not this control exists in the results GUI?

[Image Analyst]

And, by the way, you missspelled lengths as lenghts.

[Hamza]

you are right i have uitable2 in my gui not uitable1 thank you very much it works fine

Answer 1

[Geoff Hayes]

Hamza - if you look at your results.fig from within GUIDE, you will note that there is one uitable and one static text control. If you double-click on the uitable and look at its Tag property you will see that it is named uitable2 and not uitable1. Change the name, save the figure/GUI, and try again.

[Hamza]

thank you the tag was uitable2 not uitable1 now it works fine